Some customers are unable to see the menu in their Yahoo Mail account to switch between Yahoo Mail and Business Mail accounts. You may also be able to see this menu, but your Business Mail account does not appear in the list of options.
While we’re working to resolve this, you may still be able to access your Business Mail account by typing the following address directly in your browser:
http://mail.[yourdomain].[tld]
For example: http://mail.papayadayspa.com or http://mail.noerrors.net
Our engineers are aware of the issue and working to resolve this as quickly as possible.